All Outputs (4)

Relating Hydraulic Conductivity to Particle Size Using DEM (2020)
Journal Article
McDowell, G., & de Bono, J. (2021). Relating Hydraulic Conductivity to Particle Size Using DEM. International Journal of Geomechanics, 21(1), Article 0602003. https://doi.org/10.1061/%28asce%29gm.1943-5622.0001670

For over 100 years it has been accepted that the permeability or hydraulic conductivity of a soil is controlled by the size of pores through which the fluid flows, and that this pore size should be a function of particle sizes. All well-known formula... Read More about Relating Hydraulic Conductivity to Particle Size Using DEM.

Discrete element modelling of two-layered ballast in a box test (2020)
Journal Article
Li, H., & Mcdowell, G. (2020). Discrete element modelling of two-layered ballast in a box test. Granular Matter, 22, Article 76. https://doi.org/10.1007/s10035-020-01046-6

It has been recently reported that ballast comprising differently graded layers helps to reduce track settlement. The main goal of this paper is to provide micro mechanical insight about how the differently layered ballasts reduce the settlement by e... Read More about Discrete element modelling of two-layered ballast in a box test.

A new abrasive wear model for railway ballast (2020)
Journal Article
De Bono, J., Li, H., & McDowell, G. (2020). A new abrasive wear model for railway ballast. Soils and Foundations, 60(3), 714-721. https://doi.org/10.1016/j.sandf.2020.05.001

A new method to model the abrasion of granular particles using the discrete element method is demonstrated in this paper. This new, simple method is based on a classical theory of abrasive wear, relating the volume of solid lost to the frictional wor... Read More about A new abrasive wear model for railway ballast.

The effects of particle shape on the yielding behaviour of crushable sand (2020)
Journal Article
De Bono, J., & Mcdowell, G. (2020). The effects of particle shape on the yielding behaviour of crushable sand. Soils and Foundations, 60(2), 520-532. https://doi.org/10.1016/j.sandf.2020.04.001

Discrete element method simulations are used to investigate the effects of particle shape on the plastic behaviour of sand. This is achieved by using four different shapes of crushable particles. The behaviours of the different particles when subject... Read More about The effects of particle shape on the yielding behaviour of crushable sand.